Finally, a semi-reusable food pouch that"s economical and eco-friendly! Perfect for organic purees, homemade fruit smoothies, yogurt treats and more, while at home or on-the-go! The GoFreshBaby reusable food pouch is made of a heavy duty food grade plastic that is puncture resistant, BPA-free & Phthalate-free. Featuring a leak-resistant double-zip closure embedded into the seal at an angle that reduces pressure buildup and a top spout design that kids love! Measuring lines on the semi-translucent pouch make portion control a breeze and a sturdy bottom gusset expands to hold 5 oz (150ml) of semi-solid food as well as allows the pouch to stand upright when full! The GoFreshBaby food pouch has a very secure double zip seal closure that prevents the pouch from opening or rupturing under pressure. To open, unscrew the cap and blow air into the pouch until bottom gusset is fully expanded. Pull apart the double zip closure by applying firm pressure with thumbs directly at the seal. Be careful not to tear the zip seal lining by pulling at the tab extensions aggressively! Filling the pouch is easy and convenient thanks to the double zip seal opening and expandable bottom gusset. To fill, open the reusable pouch and be sure the bottom gusset is completely expanded. Hold pouch so that the zip seal opening faces up with the cap securely tightened. Pour semi-solid food directly into the opening using a measuring cup or funnel. Seal and wipe away any excess food. To clean, we recommend washing by hand in warm soapy water. A bottle brush is great for cleaning the inside and hard to reach areas around the expandable bottom gusset. Rinse thoroughly and let air dry completely. Top rack dishwasher safe!